EP3427799B1 - Nozzle apparatus comprising a filter - Google Patents
Nozzle apparatus comprising a filter Download PDFInfo
- Publication number
- EP3427799B1 EP3427799B1 EP18187857.0A EP18187857A EP3427799B1 EP 3427799 B1 EP3427799 B1 EP 3427799B1 EP 18187857 A EP18187857 A EP 18187857A EP 3427799 B1 EP3427799 B1 EP 3427799B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- tube
- filter
- pipeline
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
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- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000020564 Eye injury Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/40—Filters located upstream of the spraying outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/14—Details thereof
- F23K5/18—Cleaning or purging devices, e.g. filters
Definitions
- This invention relates to a nozzle apparatus comprising filter particularly but not exclusively as a nozzle apparatus connected to a pipeline.
- Fluid flow systems such as sprinkler systems are widely used in onshore and offshore installations, such as oil and gas platforms, to contain or suppress fire.
- Scale is typically formed by the precipitation of mineral compounds from water, such as calcium carbonate or calcium sulphate, due to pressure and/or temperature changes in the pipeline. Corrosion in pipelines can build up along the inner wall of pipe and also results in debris entering the system. Marine growth can also cause blockage problems. Salts can also crystallise and cause blockage problems.
- Debris can pose a problem if it is distributed outwith the sprinkler system. Fluid is typically ejected from the exit point at high velocities and any debris present can cause injury to personnel. It has been known to cut faces and has the potential to cause serious eye injuries.
- WO2014/009713 describes a nozzle apparatus with an entry segregator 22 having an axial passage 12. Slots 25 in the entry segregator 22 provide additional filtration capacity to other components described therein.
- WO2014/009714 describes a nozzle system comprising a nozzle apparatus in fluid communication with a pipeline.
- the nozzle apparatus comprises a first and second inlet and an outlet.
- the nozzle apparatus extends into the pipeline such that a portion of the first inlet is in the centre of the pipeline. This can reduce the likelihood of the nozzle apparatus becoming blocked due to the build-up of debris on the inner edge of the pipeline.
- EP 1 992 415 discloses a filter in combination with a high-pressure nozzle for de-scaling steel.
- the filter has dome-shaped first end with several slit inlets and several additional longitudinal slits positioned around the circumference of the filter tube.
- an object of the present invention is to further mitigate the problem of blockages.
- a nozzle apparatus comprising:
- the first end of the filter tube is tapered and especially dome shaped. That is, the centre of the first end (often perimeter of the end inlet) may extend longitudinally further than an outer portion of the first end. In this way, debris is in use directed towards an outside of the tube, where it is less likely to be drawn into the filter and potentially block a nozzle.
- the further inlets are slots.
- the further inlets may extend generally parallel (+/- 10 degrees) to the (normally longitudinal) direction from the first to the second end.
- the number of further inlets depends on the diameter of the filter. There is normally at least 8 further inlets, and for a 1.27cm (0.5") diameter filter, there are normally up to 20 further inlets.
- the slots normally have a width of 1 - 3 mm or 1.5 - 2.5mm.
- the spacing between the slots is normally between 50% and 150% larger than the width of the slots.
- the slots may be 1mm width, and spaced apart by 2mm.
- the length of the slots can vary depending on the application of the filter e.g. the size of a pipe to which it may be attached but is normally at least 1.5cm, optionally at least 2cm, or normally for larger pipes, more than 3cm. They may extend up to 10cm or up to 8cm, although this largely depends on the size of the pipe to which they are attached.
- the slots may extend for more than 4 cm and optionally up to 6 cm.
- the slots may extend for up to 75% or up to 50% of the length of the tube.
- the slots may extend for a portion of the tube between the first end and the middle of the tube.
- the tube may be circular in cross-section. Preferably the tube extends longitudinally.
- the outlet may be at the second end.
- the internal cross-sectional area of the tube is normally taken at the narrowest internal point in the tube. However, the internal cross-section of the tube is the same along the majority if not all of its length, such as at least 75%, or at least 90 or 95% of its length.
- Said internal cross-sectional area of the tube normally has a height to width ratio of at most 2:1, normally 1.5:1, 1.1:1 or equal i.e. 1:1. It is normally circular.
- the inlet cross-sectional area may be at least 75%, preferably at least 90% and ideally 100%, of the internal cross-sectional area. This assists in maintaining pressure and flow rate in the filter in use.
- the tube may be 5.08 - 10.16 cm (2 - 4 inches) long.
- the nozzle apparatus described herein may be suitable for a variety of applications which require clear flow of fluid, especially as a nozzle for a pipeline.
- a pipeline comprising a pipe, and the filter as described herein.
- the filter of the nozzle apparatus extends into the pipeline. In use, it can filter debris from entering which can mitigate the blockages or reduce the number of blockages, experienced downstream in a nozzle.
- a reducing bush may be used to size the nozzle apparatus into a suitable socket in the pipeline.
- a wider diameter coupling (compared to the pipe) may also be provided between an end of the pipe and the outer body or reducing bush.
- the length of the tube is longer, and this extends beyond any reducing bush.
- a weld-o-let fitting may be used.
- the portion of the tube adjacent the reducing bush, or weld-o-let is preferably substantially solid - the slots extending in a portion of the tube outwith this area. This can improve the mechanical mounting. For example, at least 75% of this area may be free from slots or at least 95%.
- the nozzle apparatus may be added to an end of the pipeline, and the filter extend therein, substantially parallel (+/- 10 degrees) to the main longitudinal axis of the pipeline. Alternatively, it may be provided at an angle such as substantially at a right angle (+/- 10 degrees) to the main longitudinal axis of the pipeline.
- the first end (including the end inlet where provided) extends into the central 10% of the pipeline, that is +/- 10% of the inner diameter of the pipeline around the central axis.
- +/- 5% The end may not be in the exact centre. It has been found especially useful to be 3 - 4% or 3 - 5% off-centre, that is spaced by such a proportion away from the main longitudinal axis based on the internal diameter of the pipeline.
- elbow joins it is preferred to be slightly above the central axis, for other joins, slightly below.
- the cross-sectional area of the end inlet is +/- 20% of the total cross-sectional area of the outlet of the nozzle, normally +/- 10% or +/- 5%.
- the end inlet is no larger than the nozzle outlet. In this way, any debris which is small enough to proceed through the end inlet, will not be large enough to block the nozzle outlet.
- the pipe may have an inner diameter from 1.25 cm (0.5") optionally more than 1.91 cm (0.75") or more than 2.54 cm (1"). Certain embodiments may be up to 8.89 cm (3.5"), up to 7.62 cm (3") or up to 5.08 cm (2").
- nozzle apparatus comprising a nozzle and the filter described herein.
- the bore of the nozzle, especially the outlet of the nozzle is not reduced by the combination of the filter and the nozzle.
- the filter may be sized such that the bore of the nozzle, especially the outlet of the nozzle, is not reduced in size when combined with the filter.
- Figures 1 and 2 show a side and three-dimensional view of a distinct embodiment of a filter 10 in accordance with one aspect of the present invention.
- the filter 10 is formed from a tube 12 extending from a first end to a second end.
- An inlet 18 is positioned through the first end of the tube and the inlet has a cross-sectional area less than the cross-sectional area of the outlet 16 of the tube 12 and normally less than the outlet of an associated nozzle in use.
- the inlet 18 also has a cross-sectional area less than the cross-sectional area of the internal bore of the tube 12.
- Slots 20 extend longitudinally along the first part of the side wall 13 of the tube 12 from the first end of the tube to a threaded bush 22.
- the slots are 1 mm and above in width and, in this example, are of a suitable length where two of the slots equals the flow required to give the corresponding K-Factor of the associated nozzle. For such embodiments, the volume of water that will pass through two slots will be greater or equal to the flow required by the nozzle.
- the slots will allow the correct operating volume of fluid through to the nozzle.
- the volume required in such embodiments is three times the volume required to feed the nozzle at all times. Therefore, the inlet 18 plus four slots 20 can equal three times the dispersion flow rate of the nozzle.
- the slots 20 will be larger in order to reduce blocking. For example, where the fluid is water, the slot width is 1 mm, whereas for foam the slot 20 width is 1.5mm or greater.
- the number of slots 20 may be, for example, 4 to 24 or greater depending on the dimensions of the filter 10. In other embodiments, the slots need not provide the flow rate described above for this embodiment.
- the filter 10 is adapted to connect to a standard nozzle (not shown) typically used for fire sprinkler systems. Once the filter 10 is connected to a nozzle, the inlet 18 has a cross-sectional area less than the cross-sectional area of the outlet of the nozzle.
- a bush thread is provided to connect the filter to a nozzle.
- the filtering mechanism is dormant, but this portion provides structural support and enables for faster production as this portion requires less machining to manufacture.
- the inner chamber of the filter 10 is sized such that the diameter (or other dimension) is matched to the inlet of the nozzle. This allows full flow into the nozzle without restriction to the flow in the inner chamber of the filter 10. This region will be free flowing without debris that would normally block the nozzle's exit orifice.
- the benefits of this embodiment are that it can work in any position of pipe from Elbow / Tee / Down Pipe and Up Pipe with it being positioned out with the concentric flow path, the first inlet should be within the ID of the main flow path with the slots being positioned in a debris entrapment area in the pipe line (Elbow Cavity - Tee Cavity - Weld Let Cavity) out with concentric flow path.
- the strength of this filter is also improved as the slots are not the full body length of the internal section of the adaptor, in this embodiment, but are based specifically on two slots to allow the correct flow through to the nozzle, this also enables manufacture time to be reduced without compromise to flow.
- Each size of filter is given a K-Factor of its own to ensure that the K-Factor of the nozzle is always achieved when choosing the correct variation for any nozzle with any fluid.
- the inlet 18 has a diameter of approximately 3.9 mm compared with a nozzle outlet diameter of approximately 4 mm and a filter outlet of 14mm. In an alternative embodiment, if the nozzle has an exit diameter of 10mm the inlet 18 diameter to the filter is 9.9mm or less.
- the inlet 18 and the slots 20, in this embodiment, are sized such that the flow rate through the filter 10 is equal to the flow rate through a tube having an open bore of similar size. Consequently, without wishing to be bound by theory, the flow of fluid through the nozzle is equivalent to the full bore flow rate of an equally sized tube open ended tube.
- the first end of the filter 10 is a debris deflector formed in a tapered or dome-shaped end 19 such that the centre of the first end extends longitudinally further than an outer portion of the first end.
- the shape of the first end of the tube 12 encourages debris flowing through the pipeline to proceed in a flow direction away from the inlet 18.
- the curvature of the debris deflector 19 limits the availability of flat areas of impact (i.e. surfaces at substantially 90 degrees to the direction of flow) for flowing debris and encourages debris in the flow to flow beyond the inlet 18.
- the rounded end section of the filter limits the point of fixture for debris close to the inlet, and any debris flowing in the pipeline is forced around the filter and down past the filter into the debris entrapment area 28 within the pipe (shown in Figs. 3 , 4 and 5 ).
- the smooth edge/surface of the debris deflector reduces friction of the filter which propels debris away from the inlet.
- the cylindrical shape and/or curved surfaces also provide a smoother flow path of water or delivery fluid for example oil or firefighting foam. The cylindrical and/or curved surfaces further reduce the areas where salt crystallisation can begin allowing a free flow area.
- FIG. 3 shows the filter 10 arranged in a pipeline 40.
- the filter 10 is connected to a pipe 30, a tubular coupling 32 and a reducing bush 26.
- Debris 60 flows around the dome-shaped end 19 of the filter 10 and into the tubular coupling 32.
- the portion of the tube 12 adjacent to the reducing bush 26 is substantially solid.
- the slots 20 extend in a portion of the tube 12 substantially outwith the reducing bush 26. In this example, 95% of the portion of the tube 12 adjacent to the reducing bush 26 is free from slots 20.
- the slots 20 are located substantially within the debris entrapment area 28. In use, the debris flows in the pipeline 30, around and down past the filter 10 into the debris entrapment area 28.
- Figure 4 shows the filter 10 arranged in a pipeline 40, connected to the pipeline via an elbow connector 44.
- Figure 5 shows the filter 10 arranged in a pipeline 40, connected to the pipeline via a T-junction connector 42.
- the combination of the inlet 18 and the slots 20 provides the filter 10 with a K-factor equivalent or greater than the K-factor of an open tube of the same dimensions as the tube 12 of the filter 10.
- the filter 10 filters debris from the flow while maintain full bore flow to the nozzle.
- Figure 6a shows a distinct embodiment of a filter 110 comprising a tube 112 having a bore (not shown) extending therethrough, a side inlet 114 in a side wall 113, an end inlet 118, and an outlet 116.
- Slots 120 extend longitudinally along the first part of the side wall 113 of the tube 112 from the end inlet to a threaded bush 122.
- the threaded bush 122 is a mounting means provided over the tube 112 at the outlet 116 end, and is used to secure in a pipeline or a reducing bush as described further below.
- An inner thread (not shown) is also provided at the outlet end, for connection to a nozzle.
- the end inlet 118 is provided on a dome 119, which extends from the tube 114.
- the end inlet 118 has a smaller diameter (and therefore cross-sectional area) than the outlet 116.
- the diameter of the side inlet 114 is the same as that as the bore of the tube 114, and the outlet 116.
- the outlet 116 has a plane which is through the cross-section of the tube 112, at right angles to the main longitudinal axis thereof. Whilst the side inlet 114 is in a side of the tube 112, and has a plane which is generally at right angles to the plane of the outlet 116.
- the end inlet 118 has a cross-sectional area the same full bore as a nozzle 150 (shown in Figure 6b ) to be greater than the nozzle's K-factor.
- Fig. 6b illustrates the filter 110 in a pipe 130 via a tubular coupling 132 and reducing bush 134.
- a nozzle 150 is received into the bore of the tube 112 at the outlet 116 via the internal thread.
- fluid flows through the pipe 130 in the direction of arrow 136.
- Large pieces of debris, liable to block the nozzle 150 are inhibited to flow through the most direct inlet (the end inlet 118) because of its reduced size. Debris that can and does flow therethrough tends to be small enough to be less likely to cause blockages in the nozzle 110.
- the dome shape or bevelled edge 119 of the end of the tube 112 also encourages the debris to go past the end inlet 118 and combined with the flow pressure, gather outside of the filter 110, rather than enter the side inlet 114
- Fluid flow and pressure is nonetheless maintained through the side inlet 114, and the slots 120.
- the embodiment provides the benefit of full bore pressure applied to the nozzle because the inlet 114 is not restrictive in size, but also a reduced likelihood of blockages, because it is orientated at right angles to the outlet 116, i.e. on the side of the tube 112 where debris is likely to pass by, partly driven by in use fluid pressure.
- the filter 110 is provided in a T-piece connector 142 of a pipeline 140.
- a nozzle 150 is provided within the filter 110 as previously described.
- the larger (side) inlet 114 is orientated away from the fluid flow through the pipeline, represented by arrow 146. In this way, debris in the fluid is less likely to proceed through the largest inlet (the side inlet 114), and cause blockage problems downstream.
- the inlet 114 is orientated at 90 degrees to the fluid flow 146
- Figure 7b it is orientated at 180 degrees i.e. opposite the fluid flow. Nevertheless the full bore access of the side inlet 114 maintains flow rate and pressure to the nozzle 150.
- the filter 110 is positioned within the T-piece connector 142 such that the end of the tube 112 is slightly below the concentric flowpath of the pipeline 140, or alternatively, just below the longitudinal axis of the pipeline 140. In this manner, the entrapment area for debris flowing in the pipeline is maximised in the T-piece connector 142 arrangement of the pipeline 140 in the region between the slots 120 and the pipeline 140.
- An indicator arrow 148 is provided on the outer face of the bush 122 which corresponds with the orientation of the side inlet 114. Accordingly a user fitting the nozzle 150 and filter 110, will know the rotational position of the side inlet 114 from the indicator arrow 148, and can position relative to the flow direction.
- Figure 8 illustrates the filter 110 is provided in an elbow adapter 242 of a pipeline 240.
- the nozzle 150 is provided within the filter 110 as previously described.
- the larger (side) inlet 114 is orientated at ninety degrees to the fluid flow through the pipeline, represented by arrow 246.
- a smaller end inlet 118 is provided at an end of the tube 112. Debris in the fluid is less likely to proceed through the largest inlet (the side inlet 114), and cause blockage problems downstream because the debris flows between the slots 120 and the inner face of the elbow adaptor 242. Even when debris is present in this region, the side inlet 114 maintains flow rate and pressure to the nozzle 150.
- deposits such as scale and marine growth build up concentrically within the pipeline, and may inhibit flow along the pipeline.
- the deposits may eventually break off and flow within the pipeline towards the filter 110.
- any debris flow toward the slots and the debris is less likely to flow through the side inlet 114.
- the filter is positioned within the elbow connector such that the end of the tube 112 is slightly above the centre of the pipeline, or alternatively, positioned just above the longitudinal axis of the pipe.
- the filter 110 is provided in a weld let adaptor 342 of a pipeline.
- a nozzle 150 is provided within the filter 110 as previously described, and its second inlet 118 slightly below the central axis of the pipe 342.
- a variety of couplings, and reducing bushes may or may not be used, as required, to fit the nozzle to the pipeline.
- Certain embodiments use the filter without a nozzle such as between individual pipe joins in a pipeline.
Description
- This invention relates to a nozzle apparatus comprising filter particularly but not exclusively as a nozzle apparatus connected to a pipeline.
- Fluid flow systems, such as sprinkler systems are widely used in onshore and offshore installations, such as oil and gas platforms, to contain or suppress fire. During operation of the sprinkler system, it is likely that scale, debris and other pollutants will build up and become a problem. Scale is typically formed by the precipitation of mineral compounds from water, such as calcium carbonate or calcium sulphate, due to pressure and/or temperature changes in the pipeline. Corrosion in pipelines can build up along the inner wall of pipe and also results in debris entering the system. Marine growth can also cause blockage problems. Salts can also crystallise and cause blockage problems.
- It is a regular occurrence for nozzles of sprinkler systems to block due to this build-up, and this can cause the whole system to become redundant. If such nozzles become blocked, the ability of the sprinkler system to contain or suppress a fire could be severely impeded. This could hinder the safe escape of platform personnel.
- Other fluid flow systems such as burner heads can also suffer from a variety of debris which inhibits flow.
- Debris can pose a problem if it is distributed outwith the sprinkler system. Fluid is typically ejected from the exit point at high velocities and any debris present can cause injury to personnel. It has been known to cut faces and has the potential to cause serious eye injuries.
- Traditional means to tackle the presence of scale, or other debris which can potentially block the nozzle or cause injuries, include an upstream screen which blocks larger particles. However this is still unsatisfactory partly because the screens themselves become blocked and inhibit or prevent fluid coming through the exit point of the fluid system, such as a sprinkler.
-
WO2014/009713 describes a nozzle apparatus with anentry segregator 22 having anaxial passage 12. Slots 25 in theentry segregator 22 provide additional filtration capacity to other components described therein. -
WO2014/009714 describes a nozzle system comprising a nozzle apparatus in fluid communication with a pipeline. The nozzle apparatus comprises a first and second inlet and an outlet. The nozzle apparatus extends into the pipeline such that a portion of the first inlet is in the centre of the pipeline. This can reduce the likelihood of the nozzle apparatus becoming blocked due to the build-up of debris on the inner edge of the pipeline. -
EP 1 992 415 discloses a filter in combination with a high-pressure nozzle for de-scaling steel. The filter has dome-shaped first end with several slit inlets and several additional longitudinal slits positioned around the circumference of the filter tube. - Whilst generally satisfactory, the inventor of the present invention has developed a nozzle apparatus with an improved filter. Thus, an object of the present invention is to further mitigate the problem of blockages.
- According to the present invention, there is provided a nozzle apparatus, comprising:
- a filter comprising:
- a tube extending from a first end to a second end, the first end being tapered, that is the centre of the first end extends longitudinally further than an outer portion of the first end, the tube defining a bore with an internal cross-sectional area, wherein the internal cross-sectional area of the bore defined by the tube is the same along at least 75 % of its length;
- the tube having:
- an inlet to the tube, the inlet being positioned through the first end of the tube and the inlet having a first inlet cross-sectional area which is less than the cross-sectional area of the bore defined by the tube;
- an outlet from the tube at the second end, the outlet having an outlet cross-sectional area;
- a plurality of slots in the tube between an outside thereof and the bore, the slots extending generally parallel to the longitudinal direction from the first to the second end;
- a nozzle with a nozzle outlet, the nozzle outlet having a nozzle outlet cross-sectional area, wherein the filter is connected to the nozzle; and- wherein the inlet cross-sectional area of the filter is smaller than the outlet cross-sectional area of the nozzle; and,
- wherein, in use, the fluid flows from a pipeline into the filter through the inlet and the plurality of slots, through the bore of tube, and out of the filter through the outlet into the nozzle and out of the nozzle outlet.
- The first end of the filter tube is tapered and especially dome shaped. That is, the centre of the first end (often perimeter of the end inlet) may extend longitudinally further than an outer portion of the first end. In this way, debris is in use directed towards an outside of the tube, where it is less likely to be drawn into the filter and potentially block a nozzle.
- The further inlets are slots. The further inlets may extend generally parallel (+/- 10 degrees) to the (normally longitudinal) direction from the first to the second end.
- The number of further inlets depends on the diameter of the filter. There is normally at least 8 further inlets, and for a 1.27cm (0.5") diameter filter, there are normally up to 20 further inlets.
- For embodiments especially according to the invention, the slots normally have a width of 1 - 3 mm or 1.5 - 2.5mm. The spacing between the slots is normally between 50% and 150% larger than the width of the slots. For example the slots may be 1mm width, and spaced apart by 2mm.
- The length of the slots can vary depending on the application of the filter e.g. the size of a pipe to which it may be attached but is normally at least 1.5cm, optionally at least 2cm, or normally for larger pipes, more than 3cm. They may extend up to 10cm or up to 8cm, although this largely depends on the size of the pipe to which they are attached.
- Alternatively, the slots may extend for more than 4 cm and optionally up to 6 cm.
- The slots may extend for up to 75% or up to 50% of the length of the tube. The slots may extend for a portion of the tube between the first end and the middle of the tube.
- The tube may be circular in cross-section. Preferably the tube extends longitudinally. The outlet may be at the second end.
- The internal cross-sectional area of the tube is normally taken at the narrowest internal point in the tube. However, the internal cross-section of the tube is the same along the majority if not all of its length, such as at least 75%, or at least 90 or 95% of its length.
- Said internal cross-sectional area of the tube normally has a height to width ratio of at most 2:1, normally 1.5:1, 1.1:1 or equal i.e. 1:1. It is normally circular.
- The inlet cross-sectional area may be at least 75%, preferably at least 90% and ideally 100%, of the internal cross-sectional area. This assists in maintaining pressure and flow rate in the filter in use.
- The tube may be 5.08 - 10.16 cm (2 - 4 inches) long.
- The nozzle apparatus described herein may be suitable for a variety of applications which require clear flow of fluid, especially as a nozzle for a pipeline. For example, a burner head for flaring oil or gas, water delivery lines, especially a sprinkler system for firefighting or fire containment.
- According to a second aspect of the invention, there is provided a pipeline comprising a pipe, and the filter as described herein.
- Thus the filter of the nozzle apparatus extends into the pipeline. In use, it can filter debris from entering which can mitigate the blockages or reduce the number of blockages, experienced downstream in a nozzle.
- A reducing bush may be used to size the nozzle apparatus into a suitable socket in the pipeline. A wider diameter coupling (compared to the pipe) may also be provided between an end of the pipe and the outer body or reducing bush.
- Preferably the length of the tube, is longer, and this extends beyond any reducing bush.
- This is especially useful for nozzle apparatuses installed at elbow and/or T-joints.
- Alternatively, a weld-o-let fitting may be used.
- The portion of the tube adjacent the reducing bush, or weld-o-let, is preferably substantially solid - the slots extending in a portion of the tube outwith this area. This can improve the mechanical mounting. For example, at least 75% of this area may be free from slots or at least 95%.
- The nozzle apparatus may be added to an end of the pipeline, and the filter extend therein, substantially parallel (+/- 10 degrees) to the main longitudinal axis of the pipeline. Alternatively, it may be provided at an angle such as substantially at a right angle (+/- 10 degrees) to the main longitudinal axis of the pipeline. In the latter case, the first end (including the end inlet where provided) extends into the central 10% of the pipeline, that is +/- 10% of the inner diameter of the pipeline around the central axis. Optionally +/- 5%. The end may not be in the exact centre. It has been found especially useful to be 3 - 4% or 3 - 5% off-centre, that is spaced by such a proportion away from the main longitudinal axis based on the internal diameter of the pipeline. For elbow joins it is preferred to be slightly above the central axis, for other joins, slightly below.
- Preferably the cross-sectional area of the end inlet is +/- 20% of the total cross-sectional area of the outlet of the nozzle, normally +/- 10% or +/- 5%. In any case the end inlet is no larger than the nozzle outlet. In this way, any debris which is small enough to proceed through the end inlet, will not be large enough to block the nozzle outlet.
- The pipe may have an inner diameter from 1.25 cm (0.5") optionally more than 1.91 cm (0.75") or more than 2.54 cm (1"). Certain embodiments may be up to 8.89 cm (3.5"), up to 7.62 cm (3") or up to 5.08 cm (2").
- Thus, according to the invention, there is a provide nozzle apparatus, comprising a nozzle and the filter described herein.
- According to the invention the bore of the nozzle, especially the outlet of the nozzle, is not reduced by the combination of the filter and the nozzle. Accordingly, the filter may be sized such that the bore of the nozzle, especially the outlet of the nozzle, is not reduced in size when combined with the filter.
- Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying figures, in which:
-
Figure 1 shows a side view of a filter arrangement in accordance with one aspect of the present invention; -
Figure 2 shows a three-dimensional view of a filter arrangement; -
Figure 3 shows a filter arranged in a pipeline connected with a tubular connector; -
Figure 4 shows a filter arranged in a pipeline connected with an elbow connector; -
Figure 5 shows a filter arranged in a pipeline connected with a T-junction connector; -
Figure 6a is a cross-section perspective view of a filter with an inlet located in the side wall in accordance with another aspect of the present invention; -
Figure 6b is a perspective view of theFigure 6a filter spaced between a pipe shown in cross-section, and a nozzle in a first arrangement; -
Figure 7a is a front perspective view of theFigure 6a filter spaced between a pipe, shown in cross-section, and a nozzle in a second arrangement; -
Figure 7b is a front view of theFigure 7a filter and pipe in the second arrangement; -
Figure 8 is a perspective view of theFigure 6a filter spaced between an elbow connector connected to a pipe, shown in cross-section, and a nozzle in a third arrangement; and -
Figure 9 is a perspective view of theFigure 6a filter spaced in between a weld let adaptor in a pipe, shown in cross-section and a nozzle in a fourth arrangement. -
Figures 1 and2 show a side and three-dimensional view of a distinct embodiment of afilter 10 in accordance with one aspect of the present invention. - The
filter 10 is formed from atube 12 extending from a first end to a second end. Aninlet 18 is positioned through the first end of the tube and the inlet has a cross-sectional area less than the cross-sectional area of theoutlet 16 of thetube 12 and normally less than the outlet of an associated nozzle in use. - The
inlet 18 also has a cross-sectional area less than the cross-sectional area of the internal bore of thetube 12. -
Slots 20 extend longitudinally along the first part of theside wall 13 of thetube 12 from the first end of the tube to a threadedbush 22. The slots are 1 mm and above in width and, in this example, are of a suitable length where two of the slots equals the flow required to give the corresponding K-Factor of the associated nozzle. For such embodiments, the volume of water that will pass through two slots will be greater or equal to the flow required by the nozzle. The K-factor is defined as the flow rate of a nozzle given byinlet 18 becomes blocked, then the slots will allow the correct operating volume of fluid through to the nozzle. The volume required in such embodiments is three times the volume required to feed the nozzle at all times. Therefore, theinlet 18 plus fourslots 20 can equal three times the dispersion flow rate of the nozzle. For high viscosity fluids, theslots 20 will be larger in order to reduce blocking. For example, where the fluid is water, the slot width is 1 mm, whereas for foam theslot 20 width is 1.5mm or greater. The number ofslots 20 may be, for example, 4 to 24 or greater depending on the dimensions of thefilter 10. In other embodiments, the slots need not provide the flow rate described above for this embodiment. - The
filter 10 is adapted to connect to a standard nozzle (not shown) typically used for fire sprinkler systems. Once thefilter 10 is connected to a nozzle, theinlet 18 has a cross-sectional area less than the cross-sectional area of the outlet of the nozzle. - A bush thread is provided to connect the filter to a nozzle. In this portion of the filter, the filtering mechanism is dormant, but this portion provides structural support and enables for faster production as this portion requires less machining to manufacture.
- The inner chamber of the
filter 10 is sized such that the diameter (or other dimension) is matched to the inlet of the nozzle. This allows full flow into the nozzle without restriction to the flow in the inner chamber of thefilter 10. This region will be free flowing without debris that would normally block the nozzle's exit orifice. - The benefits of this embodiment are that it can work in any position of pipe from Elbow / Tee / Down Pipe and Up Pipe with it being positioned out with the concentric flow path, the first inlet should be within the ID of the main flow path with the slots being positioned in a debris entrapment area in the pipe line (Elbow Cavity - Tee Cavity - Weld Let Cavity) out with concentric flow path.
- This will mean that there will be a reduced risk of operator installation error as NPT threads do not always match up with each other and this can manipulate the positioning of the filters to the concentric flow path. The strength of this filter is also improved as the slots are not the full body length of the internal section of the adaptor, in this embodiment, but are based specifically on two slots to allow the correct flow through to the nozzle, this also enables manufacture time to be reduced without compromise to flow.
- Each size of filter is given a K-Factor of its own to ensure that the K-Factor of the nozzle is always achieved when choosing the correct variation for any nozzle with any fluid.
- In one example, the
inlet 18 has a diameter of approximately 3.9 mm compared with a nozzle outlet diameter of approximately 4 mm and a filter outlet of 14mm. In an alternative embodiment, if the nozzle has an exit diameter of 10mm theinlet 18 diameter to the filter is 9.9mm or less. Theinlet 18 and theslots 20, in this embodiment, are sized such that the flow rate through thefilter 10 is equal to the flow rate through a tube having an open bore of similar size. Consequently, without wishing to be bound by theory, the flow of fluid through the nozzle is equivalent to the full bore flow rate of an equally sized tube open ended tube. - The first end of the
filter 10 is a debris deflector formed in a tapered or dome-shapedend 19 such that the centre of the first end extends longitudinally further than an outer portion of the first end. The shape of the first end of thetube 12 encourages debris flowing through the pipeline to proceed in a flow direction away from theinlet 18. - The curvature of the
debris deflector 19 limits the availability of flat areas of impact (i.e. surfaces at substantially 90 degrees to the direction of flow) for flowing debris and encourages debris in the flow to flow beyond theinlet 18. The rounded end section of the filter limits the point of fixture for debris close to the inlet, and any debris flowing in the pipeline is forced around the filter and down past the filter into thedebris entrapment area 28 within the pipe (shown inFigs. 3 ,4 and5 ). The smooth edge/surface of the debris deflector reduces friction of the filter which propels debris away from the inlet. The cylindrical shape and/or curved surfaces also provide a smoother flow path of water or delivery fluid for example oil or firefighting foam. The cylindrical and/or curved surfaces further reduce the areas where salt crystallisation can begin allowing a free flow area. -
Figure 3 shows thefilter 10 arranged in apipeline 40. Thefilter 10 is connected to apipe 30, atubular coupling 32 and a reducingbush 26.Debris 60 flows around the dome-shapedend 19 of thefilter 10 and into thetubular coupling 32. - The portion of the
tube 12 adjacent to the reducingbush 26 is substantially solid. Theslots 20 extend in a portion of thetube 12 substantially outwith the reducingbush 26. In this example, 95% of the portion of thetube 12 adjacent to the reducingbush 26 is free fromslots 20. - The
slots 20 are located substantially within thedebris entrapment area 28. In use, the debris flows in thepipeline 30, around and down past thefilter 10 into thedebris entrapment area 28. -
Figure 4 shows thefilter 10 arranged in apipeline 40, connected to the pipeline via anelbow connector 44. -
Figure 5 shows thefilter 10 arranged in apipeline 40, connected to the pipeline via a T-junction connector 42. - With the above-described arrangement small debris that enters the
inlet 18 is able to pass freely through thefilter 10 and into and out of the nozzle. Because theinlet 18 has a smaller cross-sectional area to the outlet of the nozzle, the risk of blockages in the nozzle caused by flowing debris is significantly reduced. - Additionally, the combination of the
inlet 18 and theslots 20 provides thefilter 10 with a K-factor equivalent or greater than the K-factor of an open tube of the same dimensions as thetube 12 of thefilter 10. Thefilter 10 filters debris from the flow while maintain full bore flow to the nozzle. - Improvements and modifications may be made, without departing from the scope of the invention.
- Various modifications to the detailed designs as described above are possible.
- For example,
Figure 6a shows a distinct embodiment of afilter 110 comprising atube 112 having a bore (not shown) extending therethrough, aside inlet 114 in aside wall 113, anend inlet 118, and anoutlet 116.Slots 120 extend longitudinally along the first part of theside wall 113 of thetube 112 from the end inlet to a threadedbush 122. - The threaded
bush 122 is a mounting means provided over thetube 112 at theoutlet 116 end, and is used to secure in a pipeline or a reducing bush as described further below. An inner thread (not shown) is also provided at the outlet end, for connection to a nozzle. - The
end inlet 118 is provided on adome 119, which extends from thetube 114. Theend inlet 118 has a smaller diameter (and therefore cross-sectional area) than theoutlet 116. In contrast, the diameter of theside inlet 114 is the same as that as the bore of thetube 114, and theoutlet 116. - Moreover, the
outlet 116 has a plane which is through the cross-section of thetube 112, at right angles to the main longitudinal axis thereof. Whilst theside inlet 114 is in a side of thetube 112, and has a plane which is generally at right angles to the plane of theoutlet 116. - The
end inlet 118 has a cross-sectional area the same full bore as a nozzle 150 (shown inFigure 6b ) to be greater than the nozzle's K-factor. - The benefits of such features will become apparent in the following description on in use arrangements.
-
Fig. 6b illustrates thefilter 110 in apipe 130 via atubular coupling 132 and reducingbush 134. Anozzle 150 is received into the bore of thetube 112 at theoutlet 116 via the internal thread. In use, fluid flows through thepipe 130 in the direction ofarrow 136. Large pieces of debris, liable to block thenozzle 150 are inhibited to flow through the most direct inlet (the end inlet 118) because of its reduced size. Debris that can and does flow therethrough tends to be small enough to be less likely to cause blockages in thenozzle 110. But in any case, the dome shape orbevelled edge 119 of the end of thetube 112 also encourages the debris to go past theend inlet 118 and combined with the flow pressure, gather outside of thefilter 110, rather than enter theside inlet 114 - Fluid flow and pressure, is nonetheless maintained through the
side inlet 114, and theslots 120. Thus the embodiment provides the benefit of full bore pressure applied to the nozzle because theinlet 114 is not restrictive in size, but also a reduced likelihood of blockages, because it is orientated at right angles to theoutlet 116, i.e. on the side of thetube 112 where debris is likely to pass by, partly driven by in use fluid pressure. - In
Figures 7a and7b , thefilter 110 is provided in a T-piece connector 142 of apipeline 140. Anozzle 150 is provided within thefilter 110 as previously described. The larger (side)inlet 114 is orientated away from the fluid flow through the pipeline, represented byarrow 146. In this way, debris in the fluid is less likely to proceed through the largest inlet (the side inlet 114), and cause blockage problems downstream. InFigure 7a theinlet 114 is orientated at 90 degrees to thefluid flow 146, inFigure 7b it is orientated at 180 degrees i.e. opposite the fluid flow. Nevertheless the full bore access of theside inlet 114 maintains flow rate and pressure to thenozzle 150. - The
filter 110 is positioned within the T-piece connector 142 such that the end of thetube 112 is slightly below the concentric flowpath of thepipeline 140, or alternatively, just below the longitudinal axis of thepipeline 140. In this manner, the entrapment area for debris flowing in the pipeline is maximised in the T-piece connector 142 arrangement of thepipeline 140 in the region between theslots 120 and thepipeline 140. - An
indicator arrow 148 is provided on the outer face of thebush 122 which corresponds with the orientation of theside inlet 114. Accordingly a user fitting thenozzle 150 andfilter 110, will know the rotational position of theside inlet 114 from theindicator arrow 148, and can position relative to the flow direction. -
Figure 8 illustrates thefilter 110 is provided in anelbow adapter 242 of apipeline 240. Thenozzle 150 is provided within thefilter 110 as previously described. - The larger (side)
inlet 114 is orientated at ninety degrees to the fluid flow through the pipeline, represented byarrow 246. Asmaller end inlet 118 is provided at an end of thetube 112. Debris in the fluid is less likely to proceed through the largest inlet (the side inlet 114), and cause blockage problems downstream because the debris flows between theslots 120 and the inner face of theelbow adaptor 242. Even when debris is present in this region, theside inlet 114 maintains flow rate and pressure to thenozzle 150. - Furthermore, deposits such as scale and marine growth build up concentrically within the pipeline, and may inhibit flow along the pipeline. The deposits may eventually break off and flow within the pipeline towards the
filter 110. Typically, any debris flow toward the slots and the debris is less likely to flow through theside inlet 114. - The filter is positioned within the elbow connector such that the end of the
tube 112 is slightly above the centre of the pipeline, or alternatively, positioned just above the longitudinal axis of the pipe. - In
Figure 9 , thefilter 110 is provided in aweld let adaptor 342 of a pipeline. Anozzle 150 is provided within thefilter 110 as previously described, and itssecond inlet 118 slightly below the central axis of thepipe 342. - Depending on the dimensions of the pipeline, and the nozzle, a variety of couplings, and reducing bushes may or may not be used, as required, to fit the nozzle to the pipeline. Certain embodiments use the filter without a nozzle such as between individual pipe joins in a pipeline.
Claims (12)
- A nozzle apparatus, comprising:a filter (10, 110) comprising:- a tube (12, 112) extending from a first end to a second end, the first end being tapered, that is the centre of the first end extends longitudinally further than an outer portion of the first end, the tube (12, 112) defining a bore with an internal cross-sectional area, wherein the internal cross-sectional area of the bore defined by the tube is the same along at least 75 % of its length;the tube having:- a inlet (18, 118) to the tube (12,112), the inlet (18,118) being positioned through the first end of the tube and the inlet having a first inlet cross-sectional area which is less than the cross-sectional area of the bore defined by the tube;- an outlet (16,116) from the tube (12,112) at the second end, the outlet (16, 116) having an outlet cross-sectional area;- a plurality of slots (20,120) in the tube (12, 112) between an outside thereof and the bore, the slots extending generally parallel to the longitudinal direction from the first to the second end;- a nozzle (150) with a nozzle outlet, the nozzle outlet having a nozzle outlet cross-sectional area, wherein the filter (10, 110) is connected to the nozzle; and- wherein the inlet cross-sectional area of the filter (10,110) is smaller than the outlet cross-sectional area of the nozzle (150); and,wherein, in use, the fluid flows from a pipeline into the filter through the inlet (18, 118) and the plurality of slots (20, 120), through the bore of tube (12, 112), and out of the filter through the outlet (16, 116) into the nozzle (150) and out of the nozzle outlet.
- A nozzle apparatus as claimed in claim 1, wherein the first end of the tube (12,112) is dome-shaped.
- A nozzle apparatus as claimed in any preceding claim, wherein the filter (10, 110) further comprises a nozzle mounting means for mounting the nozzle thereto.
- A nozzle apparatus as claimed in claim 3, wherein the nozzle mounting means comprises a thread.
- A nozzle apparatus as claimed in any preceding claim, wherein the slots (20, 120) extend for up to 75% or up to 50% of the length of the tube (12, 112).
- A nozzle apparatus as claimed in any preceding claim, wherein the slots (20, 120) have a width of at least 1 mm or optionally, a width of 1 - 3 mm or 1.5 - 2.5mm.
- A nozzle apparatus as claimed in any preceding claim, wherein spacing between the slots (20, 120) is 50% - 150% larger than the width of the slots (20, 120).
- A pipeline apparatus comprising a nozzle apparatus as claimed in any one of claims 1 to 7, attached to a pipeline.
- A pipeline apparatus as claimed in claim 8, wherein the nozzle apparatus is added to an end of the pipeline, and extends therein, substantially parallel to the main longitudinal axis of the pipeline.
- A pipeline apparatus as claimed in claim 8, wherein the nozzle apparatus is added to the pipeline, and extends therein, substantially at a right angle to the main longitudinal axis of the pipeline.
- A pipeline apparatus as claimed in claim 10, wherein the first end extends into the central 10% of the pipeline.
- Use of a nozzle apparatus as claimed in any one of claims 1 to 7, with a sprinkler system for firefighting/fire containment.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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GBGB1406174.1A GB201406174D0 (en) | 2014-04-04 | 2014-04-04 | Filter |
GBGB1407584.0A GB201407584D0 (en) | 2014-04-04 | 2014-04-30 | Filter |
PCT/GB2015/051056 WO2015150836A1 (en) | 2014-04-04 | 2015-04-07 | Filter |
EP15716860.0A EP2981338B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
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EP15716860.0A Division EP2981338B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
EP15716860.0A Division-Into EP2981338B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
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EP3427799A1 EP3427799A1 (en) | 2019-01-16 |
EP3427799B1 true EP3427799B1 (en) | 2023-05-31 |
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EP18166417.8A Active EP3366357B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
EP15716860.0A Active EP2981338B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
EP18187857.0A Active EP3427799B1 (en) | 2014-04-04 | 2015-04-07 | Nozzle apparatus comprising a filter |
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EP18166417.8A Active EP3366357B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
EP15716860.0A Active EP2981338B1 (en) | 2014-04-04 | 2015-04-07 | Filter |
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US (2) | US11135535B2 (en) |
EP (3) | EP3366357B1 (en) |
CN (1) | CN106163621B (en) |
AU (3) | AU2015242360B2 (en) |
BR (1) | BR112016023130B1 (en) |
CA (1) | CA2944686C (en) |
DK (3) | DK3366357T3 (en) |
EA (1) | EA034737B1 (en) |
GB (2) | GB201406174D0 (en) |
MX (1) | MX2016012867A (en) |
MY (1) | MY188463A (en) |
SG (2) | SG10201808755YA (en) |
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GB201212199D0 (en) | 2012-07-09 | 2012-08-22 | Rigdeluge Global Ltd | Nozzle apparatus |
GB201406174D0 (en) | 2014-04-04 | 2014-05-21 | Rigdeluge Global Ltd | Filter |
GB201517760D0 (en) * | 2015-10-07 | 2015-11-18 | Rigdeluge Global Ltd | Nozzle apparatus |
WO2017103628A1 (en) * | 2015-12-17 | 2017-06-22 | Rigdeluge Global Limited | A sprinkler sysytem |
GB201522254D0 (en) * | 2015-12-17 | 2016-02-03 | Rigdeluge Global Ltd | Device |
WO2018022812A1 (en) | 2016-07-27 | 2018-02-01 | Tyco Fire Products Lp | Filter adapter |
US20200330905A1 (en) * | 2017-10-06 | 2020-10-22 | Candu Energy Inc. | Method and apparatus for filtering fluid in nuclear power generation |
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2015
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- 2015-04-07 MY MYPI2016703624A patent/MY188463A/en unknown
- 2015-04-07 DK DK15716860.0T patent/DK2981338T3/en active
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- 2015-04-07 BR BR112016023130-9A patent/BR112016023130B1/en active IP Right Grant
- 2015-04-07 CN CN201580018562.1A patent/CN106163621B/en active Active
- 2015-04-07 WO PCT/GB2015/051056 patent/WO2015150836A1/en active Application Filing
- 2015-04-07 SG SG11201608231SA patent/SG11201608231SA/en unknown
-
2019
- 2019-04-26 AU AU2019100443A patent/AU2019100443A4/en not_active Expired
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BR112016023130B1 (en) | 2021-11-16 |
AU2015242360A1 (en) | 2016-10-20 |
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EP2981338B1 (en) | 2018-09-19 |
EP3427799A1 (en) | 2019-01-16 |
EP2981338A1 (en) | 2016-02-10 |
CN106163621A (en) | 2016-11-23 |
DK2981338T3 (en) | 2019-01-21 |
AU2015242360B2 (en) | 2019-03-14 |
SG10201808755YA (en) | 2018-11-29 |
MY188463A (en) | 2021-12-10 |
US11135535B2 (en) | 2021-10-05 |
DK3366357T3 (en) | 2021-08-30 |
EA034737B1 (en) | 2020-03-13 |
CA2944686A1 (en) | 2015-10-08 |
MX2016012867A (en) | 2017-03-31 |
EP3366357B1 (en) | 2021-05-26 |
AU2019204135B2 (en) | 2020-09-17 |
CA2944686C (en) | 2023-08-08 |
AU2019204135A1 (en) | 2019-07-04 |
GB201407584D0 (en) | 2014-06-11 |
GB201406174D0 (en) | 2014-05-21 |
CN106163621B (en) | 2022-02-11 |
WO2015150836A1 (en) | 2015-10-08 |
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